A:
Positive:
1 x 301112355 x 60222477 x 430160511 x 273738535 x 86032149 x 61451555 x 54747777 x 391055245 x 122903385 x 78211539 x 558652695 x 11173
Negative:
-1 x -30111235-5 x -6022247-7 x -4301605-11 x -2737385-35 x -860321-49 x -614515-55 x -547477-77 x -391055-245 x -122903-385 x -78211-539 x -55865-2695 x -11173
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 30,111,235, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 30,111,235 | |
| -1 | -30,111,235 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,111,235.
Example:
1 x 30,111,235 = 30,111,235
and
-1 x -30,111,235 = 30,111,235
Notice both answers equal 30,111,235
With that explanation out of the way, let's continue. Next, we take the number 30,111,235 and divide it by 2:
30,111,235 ÷ 2 = 15,055,617.5
If the quotient is a whole number, then 2 and 15,055,617.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 30,111,235 | |
| -1 | -30,111,235 |
Now, we try dividing 30,111,235 by 3:
30,111,235 ÷ 3 = 10,037,078.3333
If the quotient is a whole number, then 3 and 10,037,078.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 30,111,235 | |
| -1 | -30,111,235 |
Let's try dividing by 4:
30,111,235 ÷ 4 = 7,527,808.75
If the quotient is a whole number, then 4 and 7,527,808.75 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 30,111,235 | |
| -1 | 30,111,235 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 49 | 55 | 77 | 245 | 385 | 539 | 2,695 | 11,173 | 55,865 | 78,211 | 122,903 | 391,055 | 547,477 | 614,515 | 860,321 | 2,737,385 | 4,301,605 | 6,022,247 | 30,111,235 |
| -1 | -5 | -7 | -11 | -35 | -49 | -55 | -77 | -245 | -385 | -539 | -2,695 | -11,173 | -55,865 | -78,211 | -122,903 | -391,055 | -547,477 | -614,515 | -860,321 | -2,737,385 | -4,301,605 | -6,022,247 | -30,111,235 |
Here are some more numbers to try:
Try the factor calculator